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3 years ago

I need an answer please ASAP |4+7|-|4-7|

Mathematics

2 answers:

Leto [7]3 years ago

8 0

Answer:

Step-by-step explanation:

$Hey~There!$

________________________

➜ Solve each part:

$4+7=11$

$4-7=-3$

➜ Now we need to change any negatives:

$|-3|=3$

When you see $|x|$ it means absolute value; Which is a fancy way of saying "No negative answers."

➜ Now we subtract:

$11-3=8$

________________________

So with the above work shown the answer would be $\bold8$ .

________________________

$Hope~this~helps~Mate!\\-Your~Friendly~Answerer,~Shane$ ヅ

Rufina [12.5K]3 years ago

3 0

<h2>Answer:</h2><h2>8</h2><h2>Hope this helps!!</h2>

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The Smiths own a home whose market value is $105,000. Their municipality taxes at 85% and the rate is 70 mills or $70 per thousa

barxatty [35]

Answer: 6247.5

Step-by-step explanation:

85% x 105000 = 89250

70 x 89.25 = 6247.5

7 0

4 years ago

Read 2 more answers

1st question: Reuben received 80 dollars. Write a signed number to represent this change.

lesya692 [45]

Answer:

1) +80

2) -1520

Step-by-step explanation:

Positive Signed numbers are used in real world situations to indicate the increase. Examples include; increase in weight, deposit of money into an account, increase in income, profit, height above sea level, etc. They are all represented by positive signed numbers.

Whereas, negative signed numbers show decrease. Examples include; loss of weight, withdrawal of money from an account, loans, liabilities, losses, temperature below zero degrees, height below sea level.

1) We are told that Reuben received 80 dollars. Thus, it means he received an increase in the amount of money he already had. Thus, the signed number will be +80.

2) We are told that A car corporation produced 1520 fewer cars this month than last.

Thus, the signed number will be negative since there is a decrease in number of cars.

Thus, signed number = -1520

7 0

3 years ago

Please someone help me to prove this.

morpeh [17]

Answer: see proof below

<u>Step-by-step explanation:</u>

Use the Double Angle Identity: sin 2Ф = 2sinФ · cosФ

Use the Sum/Difference Identities:

sin(α + β) = sinα · cosβ + cosα · sinβ

cos(α - β) = cosα · cosβ + sinα · sinβ

Use the Unit circle to evaluate: sin45 = cos45 = √2/2

Use the Double Angle Identities: sin2Ф = 2sinФ · cosФ

Use the Pythagorean Identity: cos²Ф + sin²Ф = 1

<u />

<u>Proof LHS → RHS</u>

LHS: 2sin(45 + 2A) · cos(45 - 2A)

Sum/Difference: 2 (sin45·cos2A + cos45·sin2A) (cos45·cos2A + sin45·sin2A)

Unit Circle: 2[(√2/2)cos2A + (√2/2)sin2A][(√2/2)cos2A +(√2/2)·sin2A)]

Expand: 2[(1/2)cos²2A + cos2A·sin2A + (1/2)sin²2A]

Distribute: cos²2A + 2cos2A·sin2A + sin²2A

Pythagorean Identity: 1 + 2cos2A·sin2A

Double Angle: 1 + sin4A

LHS = RHS: 1 + sin4A = 1 + sin4A $\checkmark$

6 0

3 years ago

Convert 20 miles in km

Tamiku [17]

Answer:

32.1869

Step-by-step explanation:

Formula :

for an approximate result, multiply the length value by 1.609

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4 0

2 years ago

Hi please help and show how you got to your answer! Thank you

Phoenix [80]

Answer: PQ=15

Step-by-step explanation:

XY=(PQ+SR)/2

PQ+SR=2*XY

PQ+35=2*25

PQ+35=50

PQ=15

4 0

2 years ago

I need an answer please ASAP |4+7|-|4-7|​

I need an answer please ASAP |4+7|-|4-7|